Coordinate measuring machine with rotatable grip

• US 7,779,548 B2
• Filed: 03/28/2008
• Issued: 08/24/2010
• Est. Priority Date: 03/28/2008
• Status: Active Grant

• Current Assignee: Hexagon Metrology Incorporated (Hexagon AB)
• Original Assignee: Hexagon Metrology Incorporated (Hexagon AB)
• Inventors: Ferrari, Paul
• Primary Examiner(s): Fulton; Christopher W
• Application Number:
  US12/057,966
• Publication Number:
  US 20090010740A1
• Time in Patent Office: 879 Days
• Field of Search: 335/03
• US Class Current: 33/503
• CPC Class Codes: G01B 21/047 Accessories, e.g. for positioning, for tool-setting, for measuring probes

Abstract

A portable coordinate measuring machine (PCMM) can have one or more rotatable grip assemblies to provide a locations for an operator to grasp the PCMM. A rotatable grip assembly can include a rotatable sleeve, a grip portion disposed over the sleeve, and one or more retaining rings to prevent the rotatable grip from axially sliding along one or more members of an articulated arm PCMM. A PCMM can include two rotatable grips to allow an operator to grasp the PCMM with both hands for positioning and repositioning operations. One rotatable grip can be positioned on an arm member most distant the PCMM base, and another rotatable grip can be positioned on a housing at least partially encasing an articulating joint assembly coupled to the arm member most distant the PCMM base. Other numbers of and locations of rotatable grip assemblies can be used in PCMMs.

Claims

1. A coordinate measuring machine comprising:

a first transfer member;

a second transfer member;

an articulating joint assembly rotatably coupling the first transfer member to the second transfer member;

a probe connected to the transfer members and the joint assembly;

a rotatable grip assembly disposed on an outer surface of one of the first transfer member and the second transfer member;

a housing disposed about at least a portion of the articulating joint assembly; and

a second rotatable grip assembly disposed on the outer surface of the housing.

2. The coordinate measuring machine of claim 1, wherein at least one rotatable grip assembly comprises:

a rotatable sleeve disposed about one of the first transfer member and the second transfer member; and

a grip portion disposed about the rotatable sleeve.

3. The coordinate measuring machine of claim 2, wherein the grip portion comprises a plurality of dimples formed therein.

4. The coordinate measuring machine of claim 1, wherein at least one rotatable grip assembly comprises a first retention ring positioned about the transfer member on which the at least one rotatable grip assembly is disposed.

5. The coordinate measuring machine of claim 4, wherein the at least one rotatable grip assembly further comprises a second retention ring positioned about the transfer member on which the rotatable grip assembly is disposed.

6. The coordinate measuring machine of claim 1, wherein the probe is coupled to an end of one of the first transfer member and the second transfer member;

and further comprising

a probe caddie disposed on the coordinate measuring machine and adapted to receive at least one probe.

7. A coordinate measuring machine comprising:

a base;

a first transfer member coupled to the base;

a second transfer member rotatably coupled to the first transfer member by a first articulation joint assembly;

a third transfer member rotatably coupled to the second transfer member by a second articulation joint assembly;

a probe connected to the transfer members;

a probe caddie coupled to the first transfer member, the probe caddie configured to receive one or more probes; and

a rotatable grip assembly disposed on the third transfer member.

8. A coordinate measuring machine comprising:

a base;

a first transfer member coupled to the base;

a second transfer member rotatably coupled to the first transfer member by a first articulation joint assembly;

a third transfer member rotatably coupled to the second transfer member by a second articulation joint assembly;

a probe connected to the transfer members;

a first rotatable grip assembly disposed on the third transfer member; and

a housing disposed about at least a portion of the second articulation joint assembly and a second rotatable grip assembly disposed on the housing.

9. The coordinate measuring machine of claim 8, wherein the housing further comprises a recess configured to receive the second rotatable grip assembly.

10. The coordinate measuring machine of claim 8, wherein the second rotatable grip assembly comprises a rotatable sleeve and a grip portion.

11. The coordinate measuring machine of claim 10, wherein the rotatable sleeve comprises a first portion and a second portion.

12. The coordinate measuring machine of claim 8, further comprising a probe caddie coupled to the first transfer member, the probe caddie configured to receive one or more probes.

13. The coordinate measuring machine of claim 8, wherein at least one rotatable grip assembly comprises a rotatable sleeve and a grip portion.

14. The coordinate measuring machine of claim 13, wherein the at least one rotatable grip assembly further comprises a retaining ring configured to prevent axial movement of the rotatable grip assembly relative to the third transfer member.

15. A coordinate measuring machine comprising:

a base;

a first transfer member coupled to the base;

a second transfer member rotatably coupled to the first transfer member by a first articulation member;

a third transfer member rotatably coupled to the second transfer member by a second articulation member;

a first housing disposed about at least a portion of the first articulation member;

a second housing disposed about at least a portion of the second articulation member;

a first rotatable grip assembly disposed on the third transfer member and rotatable about a longitudinal axis defined by the third transfer member;

a second rotatable grip assembly disposed on the second housing and rotatable about the longitudinal axis; and

a probe connected to the transfer members.

16. A coordinate measuring machine comprising:

a first transfer member;

a second transfer member;

an articulating joint assembly rotatably coupling the first transfer member to the second transfer member;

a first probe connected to the transfer members; and

a probe caddie disposed on at least one of the transfer members of the coordinate measuring machine and adapted to receive at least one probe.

17. The coordinate measuring machine of claim 16, wherein the first probe is coupled to an end of one of the first transfer member and the second transfer member.

18. The coordinate measuring machine of claim 16, wherein the probe caddie is adapted to receive at least three probes.

19. The coordinate measuring machine of claim 16, wherein the probe caddie comprises at least one retention member biased to retain at least one probe.